explicit basic_ostream(basic_streambuf<charT, traits>* sb);
basic_ostream(basic_ostream&& rhs);
virtual ~basic_ostream();
basic_ostream& operator=(basic_ostream&& rhs);
void swap(basic_ostream& rhs);
explicit sentry(basic_ostream& os);
~sentry();
explicit operator bool() const;
pos_type tellp();
basic_ostream& seekp(pos_type pos);
basic_ostream& seekp(off_type off, ios_base::seekdir dir);